Home / 492,912,931.32-680,238,170.52-281,254,221.84

Finding the Fourth Proportional to 492,912,931.32, 680,238,170.52 and 281,254,221.84

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Solution

The fourth proportional to 492,912,931.32, 680,238,170.52 and 281,254,221.84 is: 388,141,282.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,912,931.32 : 680,238,170.52 = 281,254,221.84 : x
  2. Step 2: Convert to fraction form
    492,912,931.32/680,238,170.52 = 281,254,221.84/x
  3. Step 3: Cross multiply
    492,912,931.32x = 680,238,170.52 × 281,254,221.84
  4. Step 4: Simplify right side
    492,912,931.32x = 191,319,857,315,467,808
  5. Step 5: Solve for x
    x = 191,319,857,315,467,808/492,912,931.32
  6. Step 6: Final answer
    x = 388,141,282.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.